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Cryodraco
''Cryodraco'' is a genus of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. They are found in the Southern Ocean. While ''C. antarcticus'' has minor commercial importance, ''C. atkinsoni'' and ''C. pappenheimi'' are of no interest to commercial fisheries. Taxonomy ''Cryodraco'' was first formally described as a monotypic genus in 1900 by the Belgian palaeontologist Louis Dollo when he was describing ''Cryodraco antarctica''. Although FishBase uses the genus name ''Cryodraco'', Catalog of Fishes uses ''Pagetodes'' as the genus name and treats ''Cryodraco'' as a synonym, following Sheiko. The name ''Pagetodes'' was applied to a fish which was washed onto the bow of HMS ''Terror'' and frozen in place. The fish was carefully removed from the ice, allowing the ship's surgeon John Robertson to create a rough sketch, but a cat took the fish and ate it before it could be preserved in alcohol. In 1844 John Richardson described the genus ''Pag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryodraco
''Cryodraco'' is a genus of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. They are found in the Southern Ocean. While ''C. antarcticus'' has minor commercial importance, ''C. atkinsoni'' and ''C. pappenheimi'' are of no interest to commercial fisheries. Taxonomy ''Cryodraco'' was first formally described as a monotypic genus in 1900 by the Belgian palaeontologist Louis Dollo when he was describing ''Cryodraco antarctica''. Although FishBase uses the genus name ''Cryodraco'', Catalog of Fishes uses ''Pagetodes'' as the genus name and treats ''Cryodraco'' as a synonym, following Sheiko. The name ''Pagetodes'' was applied to a fish which was washed onto the bow of HMS ''Terror'' and frozen in place. The fish was carefully removed from the ice, allowing the ship's surgeon John Robertson to create a rough sketch, but a cat took the fish and ate it before it could be preserved in alcohol. In 1844 John Richardson described the genus ''Pag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryodraco Atkinsoni
''Cryodraco atkinsoni'' is a bathydemersal species of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. It is endemic to the waters of the eastern part of the Southern Ocean. Taxonomy ''Cryodraco atkinsoni'' was first formally described in 1914 by the English ichthyologist Charles Tate Regan with the type locality given as the Ross Sea in the Southern Ocean where it had been collected by the ''Terra Nova'' Expedition. Some authorities treat this taxon as a synonym of '' C. antarcticus''. However, recent morphological and molecular analyses have found that this species is a distinct species from ''C. anatarcticus''. The specific name honours Edward Leicester Atkinson who was the surgeon on the Terra Nova Expedition. Description ''Cryodraco atkinsoni'' has up to 10 dark bars on each side of its body with dark spots present on its head, and is distinguished from congener '' Cryodraco antarcticus'' by being much smaller having a maximum t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryodraco Antarcticus
''Cryodraco antarcticus'', the long-fingered icefish, is a demersal species of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. It occurs only in deep waters of the Southern Ocean. Taxonomy ''Cryodraco antarcticus'' was first formally described in 1900 by the Belgian palaeontologist Louis Dollo with the type locality given as 71°22'S, 88°38'W, or 71°18'S, 88°02'W. It is the type species of the genus ''Cryodraco'', which is known as ''Pagetodes'' by some authorities. Description ''Cryodraco antarcticus'' is pale greyish-brown with 5-6 dark cross-bars on its body and dusky-tipped pelvic fins. It is distinguished by the elongate shape of its pelvic fins, which are blackish in the pelagic juveniles. This species can grow up to . Distribution and habitat ''Cryodraco antarcticus'' is found near the South Orkney Islands, the Antarctic Peninsula, the Weddell, Bellinghausen, Ross and Davis seas at depths of 90 to 600 m (295 to 1970 ft). Bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryodraco Pappenheimi
''Cryodraco pappenheimi'' is a bathydemersal species of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. It occurs in the Southern Ocean. The status of ''C. pappenheimi'' as a ''Cryodraco'' species is unclear. The holotype was deposited in the Natural History Museum, Berlin The Natural History Museum (german: Museum für Naturkunde) is a natural history museum located in Berlin, Germany. It exhibits a vast range of specimens from various segments of natural history and in such domain it is one of three major muse ... and has been lost. From descriptions of this taxon, it is possible that it does not belong in the genus ''Cryodraco''. References Cryodraco Fish of the Southern Ocean Fish described in 1913 Taxa named by Charles Tate Regan {{Notothenioidei-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Channichthyidae
The crocodile icefish or white-blooded fish comprise a family (Channichthyidae) of notothenioid fish found in the Southern Ocean around Antarctica. They are the only known vertebrates to lack hemoglobin in their blood as adults. Icefish populations are known to reside in the Atlantic and Indian sectors of the Southern Ocean, as well as the continental shelf waters surrounding Antarctica. Water temperatures in these regions remain relatively stable, generally ranging from . One icefish, ''Champsocephalus esox,'' is distributed north of the Antarctic Polar Frontal Zone. At least 16 species of crocodile icefish are currently recognized, although eight additional species have been proposed for the icefish genus ''Channichthys.'' In February 2021, scientists discovered and documented a breeding colony of ''Neopagetopsis ionah'' icefish estimated to have 60 million active nests across an area of approximately 92 square miles at the bottom of the Weddell Sea in Antarctica. The majority ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crocodile Icefish
The crocodile icefish or white-blooded fish comprise a family (Channichthyidae) of notothenioid fish found in the Southern Ocean around Antarctica. They are the only known vertebrates to lack hemoglobin in their blood as adults. Icefish populations are known to reside in the Atlantic and Indian sectors of the Southern Ocean, as well as the continental shelf waters surrounding Antarctica. Water temperatures in these regions remain relatively stable, generally ranging from . One icefish, ''Champsocephalus esox,'' is distributed north of the Antarctic Polar Frontal Zone. At least 16 species of crocodile icefish are currently recognized, although eight additional species have been proposed for the icefish genus ''Channichthys.'' In February 2021, scientists discovered and documented a breeding colony of ''Neopagetopsis ionah'' icefish estimated to have 60 million active nests across an area of approximately 92 square miles at the bottom of the Weddell Sea in Antarctica. The majority ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Robertson (naval Surgeon)
John, Jon, or Jonathan Robertson may refer to: Politicians United Kingdom politicians *J. M. Robertson (John Mackinnon Robertson, 1856–1933), British journalist and Liberal MP for Tyneside 1906–1918 *John Robertson (Bothwell MP) (1867–1926), MP for Bothwell, Lanarkshire 1919–1926 *John Robertson (Berwick MP) (1898–1955), Labour Party MP 1945–1951 for Berwick and Haddington, then Berwick and East Lothian * John Robertson (Paisley MP) (1913–1987), Labour Party MP 1961–1979, co-founder of the Scottish Labour Party *John Home Robertson (born 1948), former MP and MSP *John Robertson (Glasgow MP) (born 1952), former Labour Member of Parliament for Glasgow North West Australian politicians *John Robertson (premier) (1816–1891), fifth Premier of New South Wales *John Robertson (politician, born 1962), former Labor leader in New South Wales and opposition leader Canadian politicians *John Robertson (Nova Scotia politician) (1784–1872), MP in the Nova Scotia House of Ass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine Fish Genera
Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (other) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * Marines, a naval-based infantry force ** United States Marine Corps ** Royal Marines of the UK ** Brazilian Marine Corps ** Spanish Marine Infantry ** Fusiliers marins (France) ** Indonesian Marine Corps ** Republic of China Marine Corps ** Republic of Korea Marine Corps ** Royal Thai Marine Corps *"Marine" also means "navy" in several languages: ** Austro-Hungarian Navy () ** Belgian Navy (, , ) ** Royal Canadian Navy () *** Provincial Marine (1796–1910), a predecessor to the Royal Canadian Navy ** Navy of the Democratic Republic of the Congo () ** Royal Danish Navy () ** Finnish Navy (, ) ** French Navy () ** Gabonese Navy () ** German Navy () ** Royal Moroccan Navy () ** Royal Netherlands Navy () ** Swedish Navy () Places * Marine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of The Southern Ocean
Fish are Aquatic animal, aquatic, craniate, gill-bearing animals that lack Limb (anatomy), limbs with Digit (anatomy), digits. Included in this definition are the living hagfish, lampreys, and Chondrichthyes, cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a vertebrate, true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed placodermi, external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathydemersal
Demersal fish, also known as groundfish, live and feed on or near the bottom of seas or lakes (the demersal zone).Walrond Carl . "Coastal fish - Fish of the open sea floor"Te Ara - the Encyclopedia of New Zealand. Updated 2 March 2009 They occupy the sea floors and lake beds, which usually consist of mud, sand, gravel or rocks. In coastal waters they are found on or near the continental shelf, and in deep waters they are found on or near the continental slope or along the continental rise. They are not generally found in the deepest waters, such as abyssal depths or on the abyssal plain, but they can be found around seamounts and islands. The word ''demersal'' comes from the Latin ''demergere'', which means ''to sink''. Demersal fish are bottom feeders. They can be contrasted with pelagic fish which live and feed away from the bottom in the open water column. Demersal fish fillets contain little fish oil (one to four percent), whereas pelagic fish can contain up to 30 percent. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Orkney Islands
The South Orkney Islands are a group of islands in the Southern Ocean, about north-east of the tip of the Antarctic Peninsula''Antarctica: Secrets of the Southern Continent'' p. 122 David McGonigal, 2009 and south-west of . They have a total area of about . The islands are claimed both by Britain (as part of the since 1962, previously as a [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Shetland Islands
The South Shetland Islands are a group of Antarctic islands with a total area of . They lie about north of the Antarctic Peninsula, and between southwest of the nearest point of the South Orkney Islands. By the Antarctic Treaty of 1959, the islands' sovereignty is neither recognized nor disputed by the signatories and they are free for use by any signatory for non-military purposes. The islands have been claimed by the United Kingdom since 1908 and as part of the British Antarctic Territory since 1962. They are also claimed by the governments of Chile (since 1940, as part of the Antártica Chilena province) and Argentina (since 1943, as part of Argentine Antarctica, Tierra del Fuego Province). Several countries maintain research stations on the islands. Most of them are situated on King George Island, benefitting from the airfield of the Chilean base Eduardo Frei. There are sixteen research stations in different parts of the islands, with Chilean stations being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
